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(No Model.)

E. D. & O.'B.. REYNOLDS. METHOD OF MAKING HARROW Tl-IETIELv No. 246,558.Patented Aug. 30,1881

. Jizveniora ,1

74 825206 JJLG NITED STATES PATENT OFFICE.

EDMUND D. REYNOLDS AND OLIVER B. REYNOLDS, OF BROOKTON, MASS.

METHOD OF MAKING HARRO W-TEETH.

SPECIFICATION forming part of Letters Patent No. 246,558, dated August30, 1881,

Application filed May 21, 1881. (No model.)

To all whom it may concern Be it known that we, EDMUND D. REY- NOLDS andOLIVER B. REYNOLDS, of Brockton, in the State of Massachusetts, haveinvented certain Improvements in a Method of Making Harrow-Teeth; and wehereby declare the following to be a full, clear, and exact descriptionthereof, reference being bad to the accompanying drawings, making partof this specification, in which- Figure 1 illustrates a blank from whichtwo blanks are to be cut. Fig. 2 shows the lines of incision necessaryto make, from the blank shown in Fig. 1 after the corners I) areremoved, two blanks, as shown in Fig. Fig. 3 shows a completed blank,and Fig. 4 illustrates a completed tooth.

Our invention relates tot-hatclass of harrowteeth provided with a shankand a curvilinear cutting-blade in one piece, the cutting-blade beingbent out of the plane of the shank; and the object of our invention isto produce the tooth in a cheap and convenient manner.

Our invention consists in first cutting the tooth-blank from a rhomboidal blank, said blank being dividedby one cut on an ogee curve,forming two tooth-blanks, and then bending the larger end of the blankout of the plane of the shank and sharpening the cuttingedge.

lnorder that those skilled in the art may make and use our invention, wewill proceed to describe the manner in which we have carried it out.

In the said drawings, Fig.1 represents a rhomboidal sheetmeta-l blankfrom which teeth-blanks (see Fig.2) are cut by dividing said blank, Fig.l, on the ogee curve a, and cutting oft the corners b on the curvedlines d. At the same operation bolt-holes e c are punched, and we have ablank shaped as seen in Fig. 3. the outside curved line of which wesharpen into a cutting-edge, and the lower portion of which, E, is bentout of a plane with the shank-bars D, as seen in Fig.4.

\Ve are aware that heretofore various kinds of agricultural-implelnentirons and harrowteeth have been cut from blanks so laid out as to formmore than one tooth at a single cut; hence we make no broad claim tosuch manner of cutting; but,

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

The improved method herein described of making irregularly-shapedbarrow-teeth, consisting, essentially, in cutting the rhomboidal blank Aon the ogee curve aand bending the portion B out of a plane with theshank D, as set forth.

- EDMUND D. REYNOLDS.

OLIVER B. REYNOLDS. WVitnesses as to signature of E. I).Reynolds:

HOSEA KINGMAN,

EDWARD E. HOBART. \Vitnessesas to signature of O. B.Reynolds:

R. K. EVANS,

J NO. L. OoNDoN.

